Separator.



ATBNTED AUG. 13, 1907.

M. LAURITZEN.

APPLIOAT-IOH FILED P5311, 1905.

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PATENTED AUG. 13, 1907.

0. M. LAURITZEN,

SBPARATOR.

APPLICATION FILED r33. 11. 1905.

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PATENTBD AUG. 13, 1907.

C. M. LAURITZEN.

SEPARATOR. APPLIGATION FILED FEB. 11. 1905.

4 SHEETS-SHEET 4 CHRISTIAN MARIUS LAURITZEN, OF CHICAGO, ILL NOIS.

fiE PARATOR.

$peciiication of Letters Patent.

Fatented Aug. 13.3, 1907.

Application filed February 11,1905. Serial No. 245,273.

To all whom it may concern:

Be it known that I, CHRISTIAN Mnnrcs IJAURITZEN, a citizen of the United States residing at Chicago, in the county of Cool: and State of Illinois, have invented certain new and useful Improvements in Separators, of which the following is a specification. I

My invention relates to improvements in deflecting mechanisinand has ior one of its objects the regulation of the admission of air into a separator.

A further object is to provide an adjustable pneumatic separator which may he simply adjusted to separate material of different degrees of fineness, as may be required.

These and such other objects as may he hereaitcr described are attained by my invention, certain embodiments of which are illustrated in the accompanying drawings, in which Figure 1 represents a sectional view of separator with my deflecting mechanism in place. Fig. 2 is a horizontal plan view on the line 22 of Fig. 1, looking in the direction indicated by the arrows. Figs. 3'and 4 represent details showing deflecting vanes set at vari ous angles. Fi 5 is an enlarged detail of a portion of Fig. 2. Figs. 6 and 7 are enlarged details of portions of Fig. 1. Fig. 8 is an enlarged perspective of a do fleeting vane. Fig. 9 is a modified form of vane. 'Fig.

' 10 is a modified construction for shifting the vanes; and

Fig. 11 is a plan view of Fig. 10.

Like letters of reference indicate-like parts-in the several figures of the drawings.

A A represents the outer shell or casing and 8 B the inner conical shell oi theseparator.

C is a pipe leading to an exhaust lair not sh n.

D is the open end of the separator through which the induced current of air is broughtinto the separator.

E is an opening in the top of the separator through which the material to be separated is introduced therein. V

F is a rciniorccd top of the upper portion of the inner conical shell l5.

G G are series of deflecting vanes movably mounted between the sections h 13, and shifted by means of a ruck and pinion H ll and a handle K.

- L is a spout at the bottom of the inner shell.

Referring now to Figs 5, (S, 7 and S: the deflecting vane G as shown com )lh es s dellcctin niece G. having a flange u: extending from its upper edge atan oblique angle to G. One end of this flange terminates in an car G, while corresponding ear G ex tends from the lower edge ji'ist below the car G These ears are provided with belt holes 9 g rcgisterlngvertically with each other. he flange G2 is provided with a lengthwise extending slot G Extending around the inner conical shell are rigid rings L M between which the deflecting vanes are pivetally secured by means of bolts :c passingthrough the holes g g. A supplemental ring N is secured below the ring L. This ring has on its inner face a rack H engaging pinion H. Bolts 0 secured to the ring pass through the slots G in the deflecting vane, limiting the c' cular travel of the ring to the length oi the slots. This movable ring is prevented from lateral-or irregular movement by means oi holts P P projecting downwardly i'rom the upper fixed ring and adapted to press against the inner circumference of the movable ring, thus limiting the latter ring to a circular movement.

In Fig. 9 I have illustrated a modified lorin oi vane G in Which the deflecting piece G is vertical. and in Figs. 10 and U I have illustrated a modification in which the movement of the ring and the cons'. liili change of direction of the vanes is effected by Dlt'tlllS of a handle K provided with a downwardly extending finger is, which loosely fits a hole Q in an ear or projection R on (110 movable ring.

' Referring now to the operation of the device: By means of an exhaust fan or some other suitable means, an induced current of air is caused to enter the opening D and rises in the inlet chamber a between the outer and inner shells. This current following the general direction indicated by the arrows enters the return chamber in and interior of the inner shell through the openings between the vanes and thence into the pipe C. The material to be sepnrated is introduced through the top opening Eoris carried in by the air current and passes down the top .I and into the inlet chamber a. The coarser material drops to the bottom and the remainder is drawn through the Optlk ings between the vanes and into the return c ioinber 7). The vanes are preferably so arranged as that a li' zontnl line drawn through the faces thereof will be tangent to an imaginary inner circle, and the intersection of the lilies with each other will form its periphery. The size of this circle may be varied by shifting thrangle ol the 211105. as is clearly shown in Figs. 3 and -l. The greater the angle of the vanes or the less the openings there between, the greater the radius oi the circle and conversely the less the angle and the greater the opening the less the radius of the circle. With the faces of the "ones set at an oblique tingle, the nj-selting intersection of the continuation of the planes of these laces will form the periphery of the irustuni of it (one, and the interior currents of air in the return chamber 5 Will have a gy utory motion with the greatest velocity at the face of the imaginary cone. This velocity and, the length oi travel of the dust laden air within the cone B may of course be regulated by the manipulation of the vanes and the air laden with matter to be separated may be made to travel over a varying path ivith varying degrees of velocity. It will thus be seen that with a given adjustment of the angle of the vanes, the material of a certain predetermined degree of fineness will b'e drawn into the top of the pipe 0, while the heavier particles will drop into the bottom of the chamber b and out of the spout L, mingling with that material dropped down the conical passage a and passing out at the bottom through the opening D and, if desired, back into the pulverizerr With a wider opening of the vanes, the air will have a shorter travel within the cone B, and the resulting material will be coarser and vice versa.

In the use of separators in connection with crushers or pulverizers, it is difiicult to grade the material properly, as the material coming from the crusher is of varying degrees of fineness, while it s essential from a commercial standpoint that the resultant product shall be of a certain specified degree of fineness. The ability to accurately grade the material is thetest of the ciliciency of a separator. By the intelligent use of my improved device the currents of air are so regulated as that the resultant product drawn from the separator through the pipe C shall be of any desired degree of fineness.

While I derive the best results from. the device as shown, it is practicable to have the faces of the vanes vertical, in which case the resultant position of the greatest velocity in thecurrent in the inner casing will be the periphery of an imaginary cylinder. It is also obvious that there are many methods by which the vanes may he movably mounted and operated, and other modifications may be made in the mechanism of the structure without departing from the spirit of the invention. So also, for the purposes-of my invention, the particular form of the casing A is immaterial. It may be conical, square, cylindrical or of any other suitable shape.

I claim;

1. A' separator, comprising an outer casing and an inner casing, forming inlet and return chambers, means located between said inlet and return chambers for reguluting the passage of air and material from said'inlet to said return chamber, said means comprising a plurality of, fixed supports mounted upon said inner casing, a pinrality of slotted deflecting vanes pivoinily mounted upon said snppori's. n rotatable ring mounted adjacent to said supports and arranged to engage said vanes and provided with projections arranged to slidably engage the slots in said vanes, and means for partially rotating said ring.

2. in a separator, an outer casing, an inner-casing provided with uplurality of fixed supports, a movable ring. a series of deflecting vanes operatively connected with said supports, and means whereby the movement of the rim: shifts the angular adjustment of the deflecting vanes with relation to each other, said means comprising a flange on one edge of each of said deflecting vanes. said flung-e having; a slot in its upper face, a pin rigidly t ed in said movable ring and adapted to travel within said slot.

El. A pneumatic separator comprlsing' an outer casing provided at its bottom with an opening for the admission of air snd'at its top with an opening for the admission of material, an inner casing having a series of vanes adjustubly mounted therein to regulate the admission of mate-- rial, said inner casing being provided with an opening for the discharge of coarse material, and also containing an inner discharge pipe connected with a means for inducing a current of air within the separator.

4. In a pneumatic separator, the eombinaiion of an outer casing having an opening at the top for the admis sion of maieriul and an opening at the bottom thereof. an inner casing having an opening at the bottom thereof and a series of openings around the sides thereof. a discharge pipe within the inner casing: and extending without the material to be separated, said inner I inncr sas es same, means tending to exhaust the inn r usin through the discharge pipe. thereby inducing iiiwni llly-rlirofl'eri currents through the openings in the inner casing. and adjustable men us located within the inner casing' for directing the currents. substantially as descriiwd.

5 A separator, comprising an outer casin: and an inner casing, forming inlet and return chambers. means located between said inlet and return chambers for regulating the passage of air and material from said inlet to said return chamber, said means comprising a pluruliiy of plates, each of said plates having a flange along" one edge thereof. said flange being provided with a slot. and means for seciu'iiuz said plate in place comprising ears extendinghorizontally from the upper and lower edges or said pinto, and movable means adapted to coiiperutc with said slots whereby said vanes may be adjusted.

(i. A pneumatic separator comprising the combination of an outer casing provided with an opening in its top for the admission of material and with an opening below its top for the admission of air, :1 conical inncr arranged within said outer casing and provided with an opening below its top for the discharge of material by gravituand also provided with a downwardly and outwardly flaring top arranged to receive and scatter the casing; being provided with an opening a short distance below said conical top.

, means tending to exhaust air from the interior of said I casings, and suitable conducting means leudim: fromih'e interior of said inner casing to said cxhaustim: means.

7. A pneumatic separator comprising the combination with an outer casing, of an inner casing: and menus whereby material to be separated may be introduced between said casings said inner casing being provided with an opening for the admission oi material therein from be tween the inner and outer casings. means for exhaustion air from said inner casing and thereby inducing the ilow oi air from between said casings into said inner casing.

' leading from the inner casing, means tending to exhaust .he inner casing through the discharge pipe, thereby inducing :m inwmdiy flowing current through said inlet from the outer casing to the inner casing, and adjustable means locaicd in said inlet for imparting rotation lo said current and adapted to vary -the angle at which said induced current enters said inner casing. substantially as described.

9. A pneumatic separator comprising an outer casing provided with means for the admission of material to be .scpuruted, an inner cnsinp; mounted therein and provided with an opening: below iis top for the discharge by gravity 01' certain material and provided with an inlet communieating with said inner casing" above lid discharge opening, a discharge pipe. communicating with the interior of said inner casing above said inlet, means for exhausting said casing through said discharge pipe and thereby creating an induced current through said inlet into said inner casing, and means mounted in said inlet for varying the angle of entrance of said induced current. into shid inner casing and adapted to impart rotuiion to said currents.

ii). In a pneumatic separating the combination, of an outer casing having an opening at the top into which material to be separated may be introduced, an inner casing having a series of openings thcrcihrough. means for withdrawing air from the inner casing, thereby inducing inwardly directed curl'cnis through said openings, and means located within the inner casing for directing suid currcnis, said moiins being adjustable and adapted to deflect the currents into a circular path.

(ZllItISliiiN MAltillS LAliltl'iZi'lN.

Witnesses 1 II. Dnuni, M. E. Smlchns. 

